Shuhei Matsubara

Kansai University

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Hiroki Yamamoto

Kitasato University

Hiroto Kudo

Kansai University

Takahiro Kozawa

Osaka University

Atsushi Kobayashi

Tokyo University of Science

Keishi Nakamura

University of Shiga Prefecture

Atsushi Takizawa

Osaka Metropolitan University

Masanori Monde

Saga University

Kazuhiko SAKAKI

Nagano University

Tomoki Katafuchi

Saga University

Masataka Kosaka

Saitama Institute of Technology

Cooperative Institutions

Japan Science and Technology Agency

Kyoto University

Saga University

Osaka University

Shinshu University

The University of Tokyo

National Institute of Advanced Industrial Science and Technology

National Institutes for Quantum and Radiological Science and Technology

Osaka Research Institute of Industrial Science and Technology

Kyoto Architecture University

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

E114 Dew and frost point measurements of low concentration residual gases in hydrogen

The Proceedings of the Thermal Engineering Conference (2009)

Masataka Kosaka Kenji Ishida Masanori Monde Tomoki Katafuchi Shuhei Matsubara

Systematic dew and frost point data were required on the assumption that occlusions of pipes or instabilities of flow systems would occur due to condensation of high boiling point residual gases, such as water vapors, in high pressure hydrogen under rapid hydrogen filling processes in hydrogen stations for FCVs. Dew point measurement system with high pressure test cell utilizing cooled mirror technique with visible image analysis were designed and produced. Measurements with H_2+H_2O standard gases for detecting generation and growth of frosts on the mirror surface were carried out to verify basic functions of the system. Dew point estimation procedures for phase equilibrium systems with solid phases as condensed phases were also considered.

Dew

Dew point

Frost (temperature)

Boiling point

Opacity

10.1299/jsmeted.2009.123

Cite

Citations (0)

Synthesis of hyperbranched polyacetals via a _n + b₂ -type polyaddition (n = 3, 8, 18, and 21): Candidate resists for extreme ultraviolet lithography

Journal of Polymer Science Part A Polymer Chemistry (2015)

Hiroto Kudo Shuhei Matsubara Hiroki Yamamoto Takahiro Kozawa

Polyaddition (An + B2) reactions of 1,1,1-tris(4-hydoxyphenyl) ethane (THPE; A3-type monomer), calix[4]resorcinarene (CRA[4]; A8-type monomer), α-cyclodextrin (α-CD; A18-type monomer), and β-cyclodextrin (β-CD; A21-type monomer) with 1,4-bis(4-vinyloxy)cyclohexane (BVOC; B2-type monomer) afforded corresponding soluble hyperbranched polyacetals. The physical properties, including solubility, thermal stability, and film-forming ability, the ultraviolet-induced degradation reactivity, and the solubility-switch in an extreme ultraviolet (EUV) exposure tool indicated that poly(THPE-co-BVOC) and poly(CRA[4]-co-BVOC) are candidate next-generation photo-resists. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2015, 53, 2343–2350

Resorcinarene

Thermal Stability

Extreme Ultraviolet Lithography

Reactivity

Ultraviolet

Extreme ultraviolet

10.1002/pola.27686

Cite

Citations (10)

Effect of metal thin film on adhesion of copper and manganin coatings formed by cold spray on ceramic substrate

Kikai Zairyou, Zairyou Kakou Gijutsu Kouenkai kouen rombunshuu/Kikai Zairyo, Zairyo Kako Gijutsu Koenkai koen ronbunshu (2020)

Kazuhiko SAKAKI Shuhei Matsubara Keishi Nakamura

Manganin

10.1299/jsmemp.2020.28.254

Cite

Citations (0)

AN ANALYSIS OF OCCUPANCY AND VACANCY LENGTHS OF TENANTS IN OFFICE BUILDINGS IN TOKYO FIVE WARDS

Journal of Architecture and Planning (Transactions of AIJ) (2010)

Atsushi Takizawa Shuhei Matsubara Naoki Katoh Atsushi Kobayashi

In this article, we analyze the occupancy length and vacancy length of tenants located in 52 rental office buildings in main five wards of Tokyo by using survival analysis. Since the rental office market tends to change periodically, we model the phenomenon of the periodic change of 2-dimentional time-series data of tenant and vacancy rate by the ellipse approximation method.Average occupancy length is about 13 years. Attributes contributing to the increase of the occupancy length are building age and image of the rental room and etc. Average vacancy length is about 88 days. Attributes contributing to the decrease of vacancy length are good rental room image, high land price per floor-space ratio and the market condition such that its state is recovery or boom state, and etc.

Occupancy

Ellipse

10.3130/aija.75.2221

Cite

Citations (0)

Synthesis and Resist Properties of Hyperbranched Polyacetals

Journal of Photopolymer Science and Technology (2015)

Hiroto Kudo Shuhei Matsubara Hiroki Yamamoto Takahiro Kozawa

The synthesized noria-AD offered 40 nm resolution resist pattern with LWR = 9.5 nm in the case of EB exposure tool and a clear 26 nm resolution pattern with LWR = 8.3 nm by means of EUV exposure tool. These results indicate that the present poly(THPE-co-BVOC) would have higher potential to offer higher resolution pattern using EUV lithography system.

Extreme Ultraviolet Lithography

10.2494/photopolymer.28.125

Cite

Citations (5)